| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 4.63 | 193808310_ATL_CHN |
| Bill Lee | CHN | 4.54 | 193808310_ATL_CHN |
| Red Ruffing | NYA | 4.38 | 193809020_BOS_NYA |
| Bill McGee | SLN | 3.09 | 193808312_PHI_SLN |
| Thornton Lee | CHA | 2.77 | 193809010_CHA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ken Chase | MIN | -3.16 | 193809020_MIN_OAK |
| Nels Potter | OAK | -2.9 | 193809020_MIN_OAK |
| Bobo Newsom | BAL | -1.75 | 193809010_BAL_BOS |
| Slick Coffman | DET | -1.38 | 193809010_DET_NYA |
| John Whitehead | CHA | -0.75 | 193808310_CHA_MIN |
Based on accumulated WAA for this season up to 1938-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +008+ | 6.82 | Lou Fette | 209 | ATL |
| +009+ | 6.77 | Paul Derringer | 251 | CIN |
| +010+ | 6.75 | Red Ruffing | 215 | NYA |
| +017+ | 6.33 | Bill Lee | 235.3 | CHN |
| +019+ | 5.82 | Bill McGee | 184 | SLN |
| +020+ | 5.77 | Danny MacFayden | 167 | ATL |
| +026+ | 5.2 | Carl Hubbell | 179 | SFN |
| +027+ | 5.02 | Thornton Lee | 203.3 | CHA |
| +029+ | 4.76 | Freddie Fitzsimmons | 158.7 | LAN |
| +031+ | 4.67 | Russ Bauers | 194.7 | PIT |
| +033+ | 4.48 | Jim Tobin | 197 | PIT |
| +036+ | 4.36 | Dutch Leonard | 188.3 | MIN |
| +038+ | 4.25 | Clay Bryant | 210.3 | CHN |
| +044+ | 3.8 | Lefty Gomez | 196 | NYA |
| +046+ | 3.7 | Ted Lyons | 161.7 | CHA |
| +047+ | 3.6 | Bob Weiland | 204 | SLN |
| +048+ | 3.55 | Charlie Root | 117.3 | CHN |
| +051+ | 3.33 | Bob Klinger | 127.7 | PIT |
| +052+ | 3.15 | Jim Turner | 214.3 | ATL |
| +053+ | 3.14 | Bill Swift | 123.7 | PIT |
| +055+ | 3.13 | Dizzy Dean | 60.7 | CHN |
| +057+ | 2.93 | Larry French | 186.7 | CHN |
| +058+ | 2.81 | Bill Lohrman | 117.7 | SFN |
| +059+ | 2.78 | Ira Hutchinson | 114 | ATL |
| +060+ | 2.7 | Lon Warneke | 173.7 | SLN |
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